Corner bracket



FIG. 1 is a top, front, right perspective view of a corner bracket showing my new design;

FIG. 2 is a bottom, rear, left perspective view thereof;

FIG. 3 is a right elevational view thereof; a front elevational view is a mirror image of the right elevational view; and,

FIG. 4 is a left elevational view therefor; a rear elevational view is a mirror image of the left elevational view. 

CLAIM The ornamental design for a corner bracket, as shown and described. 